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8 results about "Passive Treatment" patented technology

A passive treatment system is a method for removing metals from acid mine drainage. There are several types of passive treatment systems, each of which may be used on their own or in combination to treat effluents.

Composite lubricating sleeve with effect of reducing pile sinking soil plug

PendingCN121992774AImprove controllabilityImprove the verticality of the pile bodyBulkheads/pilesStructural engineeringSolid particle
The invention discloses a composite lubricating sleeve with a pile sinking soil plug reducing effect. The device comprises a flexible substrate and a microstructure anti-drag layer which are compounded together, the outer circumferential face of the flexible base is attached to the inner circumferential face, close to a pile shoe, of a prefabricated pipe pile, and solid lubricating particles are evenly mixed in the flexible base. The microstructure resistance reduction layer is composed of a plurality of micro convex points which are regularly distributed on the inner circumferential face of the flexible substrate in a dot matrix shape, and solid lubricating particles are packaged in the micro convex points. According to the method, the pile sinking construction difficulty and equipment requirements can be effectively reduced, pile body deviation and equipment energy consumption caused by too large resistance are reduced, and the construction cost is directly saved. The core innovation of the method lies in that the blocking forming process is actively intervened through a multiple cooperation mechanism of solid particle lubrication, micro-convex-point blocking and micro-rolling, the controllability of the pile sinking process and the perpendicularity of a pile body are greatly improved, and the pile sinking quality is improved from the source. The composite lubricating sleeve is unique in technical path, and the technical span from passive treatment to active prevention and control is achieved.
Owner:CHINA RAILWAY BEIJING ENG BUREAU GRP TIANJIN ENG CO LTD +1

Rainwater collecting and cleaning supplementary irrigation device for road in dry farming agricultural area

The invention relates to the technical field of dry farming agricultural area water resource utilization and ecological environmental protection crossing, and discloses a dry farming agricultural area road rainwater collection cleaning supplementary irrigation device which comprises a main body, the right side of the main body is fixedly connected with a treatment box, and the side, away from the treatment box, of the main body is fixedly connected with a flow guide pipe. The outer surface of the flow guide pipe is fixedly connected with a water quality sensor group. According to the invention, through sedimentation of rainwater, ecological deep purification of the purification assembly, real-time monitoring of rainwater by the water quality sensor group and identification of pollutants, conversion from passive treatment to active prevention and control can be realized, removal of pollutants in rainwater can be significantly improved, and the purification efficiency of rainwater purification is improved; meanwhile, the vegetation can be used for fixing a slope and preventing sand, so that the water safety of the farmland is improved and guaranteed.
Owner:INSTITUTE OF ENVIRONMENT AND SUSTAINABLE DEVELOPMENT IN AGRICULTURE CAAS

Solid waste blending combustion flue gas purification system and control method thereof

The invention discloses a solid waste blending combustion flue gas purification system and a control method thereof, and belongs to the technical field of solid waste recycling and flue gas purification. The system comprises a boiler, a denitration device, a flue injection device, a pre-dust remover, a flue gas circulating fluidized bed semi-dry desulfurization reactor and a bag-type dust remover which are connected in sequence. And an online monitoring device, a control unit and a modification mixing device are also arranged. And the online monitoring device synchronously monitors the concentrations of HCl and chlorobenzene. The control unit adjusts the injection amount of the pre-dechlorination absorbent in real time according to the concentration of HCl, and adjusts the bed pressure drop, the water injection amount and the flue gas recirculation amount of the desulfurization reactor through cooperative control logic with dynamic safety as constraint according to the concentration of chlorobenzene, flue gas parameters and solid waste feeding amount signals. And the modification mixing device mixes and modifies part of desulfurized fly ash and primary solid waste and then returns the modified desulfurized fly ash to the boiler. According to the method, whole-process collaborative optimization is achieved, passive treatment is converted into active control, and the problems of working condition fluctuation, equipment hardening and pollution control are solved.
Owner:FUJIAN LONGKING CO LTD

Sequential reaction device suitable for passive treatment of acid mine wastewater

ActiveCN224212536Upromote oxidationImprove manganese removal efficiencyTreatment using aerobic processesWater contaminantsSulfate radicalsWater storage tank
The utility model relates to a sequential reaction device suitable for passive treatment of acid mine wastewater, which comprises a water storage tank, a neutralization reaction tank, an MOB reactor and an SRB reactor which are sequentially connected through a pipeline, the heights of liquid outlets of the water storage tank, the neutralization reaction tank, the MOB reactor and the SRB reactor are gradually reduced, and corresponding liquid inlets are respectively formed in the lower parts of the water storage tank, the neutralization reaction tank, the MOB reactor and the SRB reactor; corresponding reaction units are arranged in the neutralization reaction tank, the MOB reactor and the SRB reactor. According to the utility model, based on water quality characteristics, terrain and oxygen supply conditions are reasonably utilized, and the collected AMD is passively treated; manganese oxidizing bacteria are introduced, oxidation of Mn (II) is promoted by means of Mn (III / IV) manganese oxide generated by the manganese oxidizing bacteria, other heavy metal ions are adsorbed, the manganese removal efficiency is greatly improved, the heavy metal ions and sulfate radicals in the AMD are removed through combination with multi-stage treatment of a neutralization reaction tank and an SRB reactor, meanwhile, the pH of effluent is increased, and multi-stage purification of the AMD is completed; the method is especially suitable for acidic heavy metal mine wastewater with high manganese ion concentration.
Owner:HANGZHOU DADI ENVIRONMENTAL PROTECTION ENG CO LTD

Pneumatic conveying system for powder materials and control method thereof

The application provides a kind of pneumatic conveying system for powder material and its control method, it is related to industrial automation control technical field, the method includes collecting the monitoring data of pneumatic conveying system, based on VMD-improved AGNGO-Transformer-GRU hybrid model, the key state parameters of pneumatic conveying system are predicted, based on the improved proximal policy optimization PPO algorithm, an intelligent decision controller is constructed, and the optimal control instruction is generated according to the state of pneumatic conveying system.The application realizes the accurate prediction of solid-gas ratio and pipe blocking risk based on the hybrid model, changes the traditional passive treatment into active early warning, effectively prevents pipe blocking accidents;The improved PPO algorithm makes the system autonomously optimize the best balance point of energy consumption and efficiency through the reward function of multi-objective optimization;Online adaptive learning mechanism makes the system continuously adapt to material characteristics and equipment state changes, greatly reduces the dependence on artificial experience.
Owner:BEIJING MACH TIANCHENG TECH CO LTD +1

Anti-blocking control method, device and equipment for intelligent valve and storage medium

PendingCN121676748AValve housingsProcess engineeringPassive Treatment
The invention discloses an anti-blocking control method, device and equipment for an intelligent valve and a storage medium, and relates to the technical field of industrial valve control. According to the method, valve inlet and outlet pressure signals are collected, the blockage risk is judged according to the pressure signals, the pulverized coal deposition trend is recognized in advance, a traditional passive treatment mode after blockage occurs is replaced, and the self-cleaning action can be triggered in time at the initial stage of blockage; primary pulverized coal deposition in the valve is stripped through targeted cleaning actions, valve jamming and unsmooth circulation caused by continuous accumulation of deposition are avoided, and the effects of actively preventing blockage and reducing serious faults are achieved. Therefore, the stable operation of the valve under the severe working condition of pulverized coal feeding can be guaranteed, the non-planned shutdown loss caused by blockage is reduced, meanwhile, the frequency of manual cleaning and maintenance is reduced, and the continuous operation duration of the valve is prolonged.
Owner:XINJIANG ZHUNENG CHEMICAL CO LTD

Intelligent flushing control system and method for demister of thermal power plant

The invention relates to the technical field of flue gas purification of thermal power plants, in particular to an intelligent flushing control system and method for a demister of a thermal power plant, the system comprises a sensing module, a decision and control module and an execution module, the sensing module is used for collecting running state parameters of a unit to which the current demister belongs; the decision and control module is in communication connection with the sensing module and is used for receiving the unit operation state parameters and generating a target flushing control instruction according to the unit operation state parameters; and the execution module is in communication connection with the decision and control module and is used for carrying out partition flushing operation on the current demister according to the target flushing control instruction. Therefore, through artificial intelligence prediction and optimization, the problems of response lag, control blindness and incapability of anticipating the blockage trend in a traditional demister washing control mode are solved, intelligent washing of the demister from passive treatment to active prevention is realized, and water consumption and power consumption are remarkably reduced while the pressure difference is stabilized.
Owner:GUODIAN SCI & TECH RES INST